New Fiio Owner
100+ Head-Fier
I have a Surface 3 - it connects perfectly.
Like I said earlier - could be your X5iii or could be your Surface / laptop
Blaming FiiO without knowing all the facts is not the answer.
In my case I have gone through many cables, adapters and work arounds across two different X5IIIs from different batches and I have the same problem.
As I have already stated, my ports have beem measured for load and voltage and they are working perfectly. Everything I own including an X5II works, therefore, the fault whatever it is, is within the X5III.